Commercial Grade 5LB Fire Extinguisher: This extinguisher features an aluminum valve with a light- to medium-duty anodized aluminum valve body and an anodized aluminum handle and lever. Designed for longevity, the extinguisher has a durable high gloss polyester powder paint with an all-metal valve construction. It chemically insulates Class A fires by melting at approximately 350°F and coats surface to which it is applied. It smothers and breaks the chain reaction of Class B fires and will not conduct electricity back to the operator. Equipped with Bilingual Labels. Heavy Duty Vehicle Bracket: Vehicle Bracket for 4.25" cylinder diameter Fire Extinguishers. All Metal Construction